Players were insulted by the price for what were essentially official proxies, and collectors felt the product cheapened the mystique of the original cards
In a two-color deck, that's pretty good
Each Pokemon has one unique move they can use depending on the Energy type you attach to it
As an extreme example, there could be various artworks for the Ring of Power that only number to the number of rings actually seen in the Lore of Tolkiens original work
It's a 6-mana artifact that lets you pay another 6 mana, tap and sacrifice it to go through your library, exile as many artifacts as you like and then create that many 1/1 Myr artifact creature tokens
Your sideboard can now include absolute bombs like Ugin, the Spirit Dragon, or a much-needed Farewell to ensure your victory